Stop for mining-cars.



J. A. NOLAN.

STOP FOR MINING CARS.

APIPLIOATION IIITED AUG. 7, 1912. 9,

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STOP FOR MINING CARS.

APPLICATION FILED AUG. 7, 1912. Patented Sept. 9

2 SHEETS-SHEET 2.

JAJVoZah -UNrrED STATES PATENT OFFICE.

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fim fit t tL ttasI t 'a ucaao fiiea August "1, 1,912. Serial No. 713,938.

To a l whom i may c n r Be it known that I, JAMES A. N LAN, a citizen of the United States, residing at Bowerston, in the count-y Q Hfil'lison and State of Ol1io,.have inventednew and useful Tm )rovements in Stops for Mining-Cars, of WlllCll the following is a specification.

In its specific adaptation the'in vention is primarily intended for arnesting the movement of mining cars at a given point, such as the platform or like device of an elevator and retaining the car upon such platform during its ascent or descent.

The invention may be utilized for stopping and holding carriers of different kinds. thereby preventing displahement of the carrier from the elevating platform or like device during its ascent or descent.

The invention provides. a stop mechanism which is adapted, to be automatically operated by means of the-car to release the previous car and to automaticallyreset itself to engage and hold the next car.

The invention contemplates a mechanism embodying a trip, a stop and an intermediate actuating means, the stop being mounted upon the platform or like elevating part and the tr1p belng located at one side of the platform in position to be engaged by the car, and the actuating means havinga part mounted uponthe platform and a part attached to the structure adjacent to and forming part of the elevator shaft.

The invention consists of the novel featui fes, details of construction and combination of parts, which hereinafter will'be more particularly set forth, illustrated in the accompanying drawings,'a'nd pointed out in the appended claim.

' Referring to. the drawings, forming a part of the specificaticfi, Figure 1 is a .detail view, showing the normal position of the parts.

Fig. 2 is a detail view, showing the position of the parts when automatically actuatedby the approaching car to release the car from the platform. Fig. 3 is a top plan view. Fig. 4 is a modification.

Corresponding and like parts are referred to in the following description, and indicated j e in all the views of the drawings, by the same reference characters.

The numeral 1 designates an elevator shaft andv 2 the platform or like movable part by means-of which the cars or" other carriers are elevated or lowered Al stop 3 is mounted uponthe. platform 2 in position to, engage a mining car 4 or other carrier to Passa e 191?;

arrest its movement and hold it in proper The cam 6 is mounted upon a part of the elevator shaft. A trip 7 is located at one side of the elevator shaft in position to be engaged by the advancingcar. A rod or 'bar 8 connects the trip 7 with the cam 6.

When the platform 2 is at the lower end,-

of the elevator shaft to receive a. loaded carand' to discharge an empty carthe end of thelever engages the cam 6 and as a loaded car approaches the platform it operates the trip 7 to effect the release "of an empty car in the event of one being located on the plat-form, said empty-car being pushed from the platform by the advancing loaded car. This result is accomplished by movement of the cam '6 which elevates the end of the lever 5 resting thereon, thereby depressing the opposite end of the lever 5 and lowering the stop 3 so as to clear the emptycar and admit of its being pushed from the platform. As soon as the loaded car clears the trip 7 the parts assume a normal position,

with the stop, 3 elevated so as to engage the loaded car and arrest its forward movement. A second stop 9 mounted upon the platform 2 prevents a rebound of the loaded car and acts jointly with the sto 3. to hold the car in position upon the plat rm. The stop 9 prevents any return of the car in the event ofthe platform inclining in an opposite direction to the approach of the; car.

When the loaded car is upon the platform 2 the latter may be elevated to carry the loaded car to the upper landing for'a discharge of the load, after which the platform is lowered, the empty car being released and moved from the platform in the manner hereinbefore stated by the action of the next loaded car, 'the operation being entirely automatic. 7

In the modification shown in Fig. 4 the stop 13 is connected-tothe lever 12 intermediate of its ends and normally occupies a lowered position togadrnit' of an empty.

car being pujshed from the platform by a :loaded'car; Asthe empty ear passes from the platform it engagesthe lever 11 and. .moveslitjto lift the cam I0 and the weighted end of'the lever12,'-therebyelevating'the stop, 18' 'to, a :position' to engage the advancinglloaded car and arrest its' movement. This. is ofajdvantagewhen thetipple is-lo- -c ated at, some distance from the shaft." In

this form thew'e'ighted end ofi th'e' lever 12 holds the stop-=13. lowered, whereas, in the 'formishown in the other views the weighted end of the lever 12 when unsupported holds the'lstop 13 elevated. I ,1

From tlie foregoing description, taken in connection with. the vaccoinp'zinyin'g drawings, thefadvantages-of' the construction and .of the method of opefation'fvillbe readily apparent to those skilled ",1n'. the art to which the invention appertains, and-While v I- have described. the principle of opera tion ofthe'invention; together with the de-' vicewhichjI now consider to bthia'best embodiment thereof, I-desire to have it un-' j dersto'od thatthe device shown is merely illustrative, and that such changes maybe made when desired as are withinthe scope.

of the claim appended hereto.

' Having thus described the invention what is claimed asneW, is

In combination a vertically movable platform, a stop mounted upon the platform and adapted to arrest the movement of a -car-rier, a trip mounted upon the approach to the platform and located in the path of stop.

In testimony whereof I afiix my signature in presence of two witnesses,

JAMES A. NOLAN.

Witnesses: i

' D. R. PHILIPS,

JENN'IE PHILIPS.- 

